A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deformation-controlled ceramic matrix composite material and preparation method thereof
The invention discloses a deformation-controlled ceramic-based composite material and a preparation method thereof. The preparation method comprises the following steps: carrying out vacuum heat treatment on a silicon-based ceramic precursor and preparing a glue film; the polyborosilazane adhesive film and the polycarbosilane adhesive film which are added with the peroxide cross-linking agent are respectively loaded with the active shape-retaining filler; depositing a PyC (pyrolytic carbon) interface on the 2D carbon fiber cloth; heating and rolling the adhesive film containing the active shape-retaining filler and the carbon fiber cloth with the interface to prepare a prepreg; laying the prepreg and carrying out active shape-retaining filler controlled cracking in a nitrogen or ammonia atmosphere; pIP (precursor infiltration pyrolysis) densification is performed on the composite material by using a low-viscosity phenolic resin or an organic silicon precursor, and the densification is repeated for multiple times. The prepared ceramic-based composite material has the characteristics of high ceramization yield, high densification efficiency and excellent mechanical properties, and the first-round cracking low deformation of the ceramic-based composite material is realized through the mechanisms of in-situ reaction of the active shape-retaining filler and the gas-phase carbon micromolecules, reinforcement of the interlayer bonding strength of the 2D fabric and the like.
本发明公开了一种控制变形的的陶瓷基复合材料及其制备方法，包括以下步骤：真空热处理硅基陶瓷前驱体并制备胶膜；利用添加过氧化物交联剂的聚硅硼氮烷、聚碳硅烷胶膜分别负载活性保型填料；将2D碳纤维布沉积PyC(热解碳)界面；将含有活性保型填料的胶膜与具有界面的碳纤维布进行加热压辊制备预浸料；将预浸料铺层并在氮气或氨气气氛下进行活性保型填料控制裂解；使用低粘度酚醛树脂或有机硅前驱体对复合材料进行PIP(前驱体浸渍裂解)致密化并重复多次。制备的陶瓷基复合材料具有陶瓷化产率高、致密化效率高及力学性能优异的特点，并通过活性保型填料与气相碳小分子原位反应、强化2D织物层间粘合强度等机理实现了陶瓷基复合材料的首轮裂解低变形。
Deformation-controlled ceramic matrix composite material and preparation method thereof
The invention discloses a deformation-controlled ceramic-based composite material and a preparation method thereof. The preparation method comprises the following steps: carrying out vacuum heat treatment on a silicon-based ceramic precursor and preparing a glue film; the polyborosilazane adhesive film and the polycarbosilane adhesive film which are added with the peroxide cross-linking agent are respectively loaded with the active shape-retaining filler; depositing a PyC (pyrolytic carbon) interface on the 2D carbon fiber cloth; heating and rolling the adhesive film containing the active shape-retaining filler and the carbon fiber cloth with the interface to prepare a prepreg; laying the prepreg and carrying out active shape-retaining filler controlled cracking in a nitrogen or ammonia atmosphere; pIP (precursor infiltration pyrolysis) densification is performed on the composite material by using a low-viscosity phenolic resin or an organic silicon precursor, and the densification is repeated for multiple times. The prepared ceramic-based composite material has the characteristics of high ceramization yield, high densification efficiency and excellent mechanical properties, and the first-round cracking low deformation of the ceramic-based composite material is realized through the mechanisms of in-situ reaction of the active shape-retaining filler and the gas-phase carbon micromolecules, reinforcement of the interlayer bonding strength of the 2D fabric and the like.
本发明公开了一种控制变形的的陶瓷基复合材料及其制备方法，包括以下步骤：真空热处理硅基陶瓷前驱体并制备胶膜；利用添加过氧化物交联剂的聚硅硼氮烷、聚碳硅烷胶膜分别负载活性保型填料；将2D碳纤维布沉积PyC(热解碳)界面；将含有活性保型填料的胶膜与具有界面的碳纤维布进行加热压辊制备预浸料；将预浸料铺层并在氮气或氨气气氛下进行活性保型填料控制裂解；使用低粘度酚醛树脂或有机硅前驱体对复合材料进行PIP(前驱体浸渍裂解)致密化并重复多次。制备的陶瓷基复合材料具有陶瓷化产率高、致密化效率高及力学性能优异的特点，并通过活性保型填料与气相碳小分子原位反应、强化2D织物层间粘合强度等机理实现了陶瓷基复合材料的首轮裂解低变形。
Deformation-controlled ceramic matrix composite material and preparation method thereof
一种控制变形的陶瓷基复合材料及其制备方法
ZHANG ZHONGWEI (author) / LI WEIJIE (author) / ZHANG YIJUN (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
SiCN precursor, deformation-controlled ceramic-based composite material and preparation method
| European Patent Office | 2024
Gradient ceramic matrix composite material and preparation method thereof
| European Patent Office | 2022
Graphene toughened ceramic matrix composite material and preparation method thereof
| European Patent Office | 2024
Hard alloy matrix ceramic composite material and preparation method thereof
| European Patent Office | 2022
Ceramic matrix composite material with high matrix toughness and preparation method thereof
| European Patent Office | 2024